265  
CDUS41 KPHI 190554  
CLIILG  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ  
1254 AM EST SAT DEC 19 2020  
   
...............................
 
 
   
..THE WILMINGTON DE CLIMATE SUMMARY FOR DECEMBER 18 2020
 
 
CLIMATE NORMAL PERIOD: 1981 TO 2010  
CLIMATE RECORD PERIOD: 1894 TO 2020  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 35 2:57 PM 71 2006 44 -9 40  
MINIMUM 22 11:56 PM 0 1919 28 -6 24  
AVERAGE 29 36 -7 32  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 1.99 1977 0.11 -0.11 T  
MONTH TO DATE 2.69 2.16 0.53 3.77  
SINCE DEC 1 2.69 2.16 0.53 3.77  
SINCE JAN 1 50.91 41.76 9.15 47.06  
 
SNOWFALL (IN)  
YESTERDAY 0.0 9.0 1932 0.2 -0.2 T  
MONTH TO DATE 2.8 1.9 0.9 0.3  
SINCE DEC 1 2.8 1.9 0.9 0.3  
SINCE JUL 1 2.8 2.3 0.5 0.3  
SNOW DEPTH 1  
 
DEGREE DAYS  
HEATING  
YESTERDAY 36 29 7 33  
MONTH TO DATE 471 479 -8 464  
SINCE DEC 1 471 479 -8 464  
SINCE JUL 1 1163 1377 -214 1293  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 0 0 0 0  
SINCE DEC 1 0 0 0 0  
SINCE JAN 1 1300 1145 155 1508    
...............................................................
 
 
WIND (MPH)  
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION NW (300)  
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (300)  
AVERAGE WIND SPEED 8.3  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.4  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 81 1:00 AM  
LOWEST 58 3:00 PM  
AVERAGE 70  
   
......................................................
 
 
THE WILMINGTON DE CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 43 62 1929  
MINIMUM TEMPERATURE (F) 28 8 1919  
1926  
 
SUNRISE AND SUNSET  
DECEMBER 19 2020......SUNRISE 7:19 AM EST SUNSET 4:41 PM EST  
DECEMBER 20 2020......SUNRISE 7:19 AM EST SUNSET 4:41 PM EST  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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